Revert "Disable internal lite bot."
Revert "Disable internal lite bot."

This reverts commit 9df29b7411d18fe082cfdf23747ba74f99f118b7.

Reason for revert: Bot is now fixed

Original change's description:
> Disable internal lite bot.
> 
> TBR=oprypin@webrtc.org
> 
> Bug: webrtc:9131
> Change-Id: I2b21ba116ab94586619570ad53a786a55c086491
> Reviewed-on: https://webrtc-review.googlesource.com/68942
> Reviewed-by: Patrik Höglund <b486136ee68458b09c92c86c39f451c87d6ef6a1@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#22802}

TBR=b486136ee68458b09c92c86c39f451c87d6ef6a1@webrtc.org,oprypin@webrtc.org

Change-Id: Id9db8329d9ad2584a42073a778817c3ad7d1a178
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:9131
Reviewed-on: https://webrtc-review.googlesource.com/69103
Reviewed-by: Patrik Höglund <b486136ee68458b09c92c86c39f451c87d6ef6a1@webrtc.org>
Commit-Queue: Patrik Höglund <b486136ee68458b09c92c86c39f451c87d6ef6a1@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#22815}
TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc